Synthesis and Catalytic Degradation Property of Hierarchical Flower-Shaped CuS Architectures
Hierarchical flower-shaped CuS structures with diameters of 6 μm were successfully synthesized by hydrothermal method.In this reaction system,copper chloride and thiourea were used as copper and sulfur source respectively,polyethylene glycol acted as surfactant.The products were characterized by XRD and FESEM in detail.Results showed that the prepared CuS architectures were pure hexagonal phase and composed of thin nanoflakes with thickness of 50 nm.The catalytic activity of as-synthesized CuS was evaluated through the degradation of Rhodamine B (RhB) with the assistance of H2O2.It demonstrated that the catalyst exhibited highly efficient Fenton-like catalytic performance.The degradation efficiency reached 91％ after 2 h and the catalyst could keep high catalytic efficiency over a broad pH range of 4 to 10.Kinetics was studied for the degradation reaction,it turned out that this process conformed to pseudo-first-order kinetics.
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